Answer:
x^2 + y^2 = 25
Step-by-step explanation:
The standard form of a circle equation is:
(x - h)^2 + (y - k)^2 = r^2
where (h, k) is the center and r is the radius.
We can see that the center is (0, 0) by looking at the graph, and the radius is 5 because it is marked. Plugging these in we get:
x^2 + y^2 = 25
Let this number be x.
"Six less than seven times a number is equal to -20" can be represented by the equation 7x - 6 = -20. We need to solve for x.
First, add 6 from each side so we can have the variables on a side and the numbers on the other:
7x - 6 + 6 = -20 + 6
7x = -14
Then, you divide each side by 7 so we can get the variable x alone on a side, and its value on the other side:
(7x)/7 = -14/7
x = -2
You can re-check your answer (very important):
7x - 6 = 7 (-2) - 6 = -14-6 = -20
The answer has been approved.
Hope this Helps! :)
Answer:
Jason originally had 87 baseball trading cards.
Step-by-step explanation:
Let the number of cards Jason originally had be, <em>x</em>.
It is provided that he bought 5 new baseball trading cards to add to his new collection.
So, the new number of cards is, <em>x </em>+ 5.
It is also provided that, his dog ate half of the cards.
Now Jason has 46 cards left.
This implies that:
Solve the above equation of <em>x</em> as follows:
Thus, Jason originally had 87 baseball trading cards.
If you would like to know how many miles does each person run, you can calculate this using the following steps:
4 people ... 3 miles
1 person ... x miles = ?
4 * x = 3 * 1
4 * x = 3 /4
x = 3 / 4 mile
Result: Each person runs 3/4 mile.
Answer:
It isn't
Step-by-step explanation:
An x can't have to y's
way to remember: x=exes y=wives
you can have multiple exes (x's) but only one wife (y's)
0 has two y's
